Can u plz tell whether WINDOWS 10 UPDATE WILL BE RELEASED FOR LUMIA 730 or not?

any plans for windows 10 release for lumia 730

Yes, the 730 will get the Windows 10 update. All phones that currently run Windows Phone 8 or 8.1 will get this.

No need to yell... LOL (caps lock)

Remember that Windows 10 for phones will not be out for some months more and may not be ready until Autumn.

And also that it can be subject to carrier approval if your phone is tied to a certain service provider.

The answer is yes. "When" is subject to carrier approval, but if you're on the developer preview, then you can skip them.

Ignore all caps.